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-rw-r--r--hw/arm/aspeed_soc.c2
-rw-r--r--hw/timer/aspeed_timer.c19
-rw-r--r--include/hw/timer/aspeed_timer.h4
3 files changed, 21 insertions, 4 deletions
diff --git a/hw/arm/aspeed_soc.c b/hw/arm/aspeed_soc.c
index 7cc05ee27e..e68911af0f 100644
--- a/hw/arm/aspeed_soc.c
+++ b/hw/arm/aspeed_soc.c
@@ -127,6 +127,8 @@ static void aspeed_soc_init(Object *obj)
 
     object_initialize(&s->timerctrl, sizeof(s->timerctrl), TYPE_ASPEED_TIMER);
     object_property_add_child(obj, "timerctrl", OBJECT(&s->timerctrl), NULL);
+    object_property_add_const_link(OBJECT(&s->timerctrl), "scu",
+                                   OBJECT(&s->scu), &error_abort);
     qdev_set_parent_bus(DEVICE(&s->timerctrl), sysbus_get_default());
 
     object_initialize(&s->i2c, sizeof(s->i2c), TYPE_ASPEED_I2C);
diff --git a/hw/timer/aspeed_timer.c b/hw/timer/aspeed_timer.c
index 1e31e22b6f..5e3f51b66b 100644
--- a/hw/timer/aspeed_timer.c
+++ b/hw/timer/aspeed_timer.c
@@ -10,8 +10,10 @@
  */
 
 #include "qemu/osdep.h"
+#include "qapi/error.h"
 #include "hw/sysbus.h"
 #include "hw/timer/aspeed_timer.h"
+#include "hw/misc/aspeed_scu.h"
 #include "qemu-common.h"
 #include "qemu/bitops.h"
 #include "qemu/timer.h"
@@ -26,7 +28,6 @@
 #define TIMER_CLOCK_USE_EXT true
 #define TIMER_CLOCK_EXT_HZ 1000000
 #define TIMER_CLOCK_USE_APB false
-#define TIMER_CLOCK_APB_HZ 24000000
 
 #define TIMER_REG_STATUS 0
 #define TIMER_REG_RELOAD 1
@@ -80,11 +81,11 @@ static inline bool timer_external_clock(AspeedTimer *t)
     return timer_ctrl_status(t, op_external_clock);
 }
 
-static uint32_t clock_rates[] = { TIMER_CLOCK_APB_HZ, TIMER_CLOCK_EXT_HZ };
-
 static inline uint32_t calculate_rate(struct AspeedTimer *t)
 {
-    return clock_rates[timer_external_clock(t)];
+    AspeedTimerCtrlState *s = timer_to_ctrl(t);
+
+    return timer_external_clock(t) ? TIMER_CLOCK_EXT_HZ : s->scu->apb_freq;
 }
 
 static inline uint32_t calculate_ticks(struct AspeedTimer *t, uint64_t now_ns)
@@ -449,6 +450,16 @@ static void aspeed_timer_realize(DeviceState *dev, Error **errp)
     int i;
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     AspeedTimerCtrlState *s = ASPEED_TIMER(dev);
+    Object *obj;
+    Error *err = NULL;
+
+    obj = object_property_get_link(OBJECT(dev), "scu", &err);
+    if (!obj) {
+        error_propagate(errp, err);
+        error_prepend(errp, "required link 'scu' not found: ");
+        return;
+    }
+    s->scu = ASPEED_SCU(obj);
 
     for (i = 0; i < ASPEED_TIMER_NR_TIMERS; i++) {
         aspeed_init_one_timer(s, i);
diff --git a/include/hw/timer/aspeed_timer.h b/include/hw/timer/aspeed_timer.h
index bd6c1a7f96..040a088734 100644
--- a/include/hw/timer/aspeed_timer.h
+++ b/include/hw/timer/aspeed_timer.h
@@ -24,6 +24,8 @@
 
 #include "qemu/timer.h"
 
+typedef struct AspeedSCUState AspeedSCUState;
+
 #define ASPEED_TIMER(obj) \
     OBJECT_CHECK(AspeedTimerCtrlState, (obj), TYPE_ASPEED_TIMER);
 #define TYPE_ASPEED_TIMER "aspeed.timer"
@@ -55,6 +57,8 @@ typedef struct AspeedTimerCtrlState {
     uint32_t ctrl;
     uint32_t ctrl2;
     AspeedTimer timers[ASPEED_TIMER_NR_TIMERS];
+
+    AspeedSCUState *scu;
 } AspeedTimerCtrlState;
 
 #endif /* ASPEED_TIMER_H */